Cleaner for separator-screens.



T. P. MORSE.

I CLEANER FOR SEPARATOR SCREENS. APPLIOATION FILED 111:0. 26, 1911. RENEWED MAR. 5, 1913.

Patented 0011.7, 1913.

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SHEETSSHBBT 1.

COLUMBIA PLANOURAPH C0,, wAsHmuroN, n. c.

T. F. MORSE.

CLEANER FUR SEPARATOR SCREENS. APPLIOATIOfi FILED DEC. 26, 1911. RENEWED MAR. 5,1913. 1,74;,97201= Patented Oct. 7, 1913.

3 SHEETS-SHEET Z.

COLUMBL A PLANOGRAPH co, WASHINGTON, n. c

T. F. MORSE. CLEANER FORASEPARATOR SGREENS. APPLICATION FILED 1320126, 1911. RENEWED MAR. a, 1913.

COLUMBIA PLANOGRAPN 00., WASHINGTON. D. c.

I TED STATES ATNT @FFTQFZ.

rnnononn r. MORSE, or srLvEn CREEK, NEW roan, ASSIGNOR IO nunrnnv mm. rno'rnnrucr COMPANY, or srnvnn CREEK, new YORK.

CLEANER FOR SEPARATOR-SCREENS.

Application filed December 26, 1911, Serial No. 667,587.

To all whom it may concern Be it known that I, THEODORE F. Monsn, a citizen of the United States, residing at Silver Creek, in the county of Chautauqua and State of New York, have invented a new and useful Improvement in Cleaners for Separator-Screens, of which the following is a specification.

This invention relates to improvements in cleaners for screens and has reference more particularly to screens which are commonly used in side shake separators having oppositely inclined sides, but the invention is not limited to screens of this particular character.

The objects of this invention are to provide a simple and effective cleaner for removing material from screens that becomes lodged or collected therein, which is compact in construction, easily operated, and so constructed that it will adapt itself to the different positions of screens on which it is intended to operate and can be easily and economically installed in separating machines of standard types.

In the accompanying drawings, consisting of three sheets: Figure 1 is a side elevation of a separating machine provided with cleaners for screens containing and embodying the invention. Fig. 2 is a fragmentary sectional elevation on line 22, Fig. 1, on an enlarged scale. Fig. 3 is a fragmentary sectional elevation of the rear bearing for the cleaner shaft. Fig. 4 is an end elevation of the separating machine. Fig. 5 is a side elevation of one of the brushes. Fig. 6 is a plan view of the cleaner for the screens and its operating connections. Fig. 7 is a fragmentary sectional elevation, on an enlarged scale, on line 77, Fig. 4. Fig. 8 is a fragmentary sectional elevation, on an enlarged scale, on line 88, Fig. 4L. Fig. 9 is an end elevation, partly in section, of the screen cleaning device.

Like reference characters refer to like parts in the several figures.

The cleaner of this invention is applicable for use with various styles of separating machines in which screens are arranged in different positions relative to each other, but is particularly applicable to that type of grain separators known as the side shake separators in which the separating shoe is provided with separating screens 0r sieves Specification of Letters Patent.

Patented @ct. "i, 1913. Renewed March 5, 1913. Serial No. 752,251.

which are oppositely inclined from a common center. The separating machine shown in the drawings is of this type and comprises a frame A from which is suspended a shaking shoe B which is provided with two sets of longitudinally disposed screens O C arranged one above the other, the screens of each set being inclined downward and outwardly from a common center.

This cleaner comprises a plurality of brushes which are adapted to engage the underside of each set of inclined screens for cleaning the same, and the present invention relates to the means which are employed for supporting the brushes beneath the screens and for moving them back and forth in engagement therewith for cleaning purposes.

In the particular construction shown, D D represent the brushes for cleaning the screens. A plurality of brushes are employed for each screen and these brushes are arranged equi-distant apart underneath the oppositely inclined screens of each set. The brushes for each screen are pivotally mounted on a connecting rod E and for this purpose the back of each brush is provided with a bracket 6 having an opening 6' through which the rod E is adapted to extend. Cotter pins c in the rod E, at opposite sides of the brackets c, prevent the brushes from moving endwise of the connecting rod. The brackets 0 may be secured to the backs of the brushes by any suitable means, such as by bolts a The arrangement of the brushes on the connecting rods E enables the brushes to conform to any changes or inequalities in the surface of the screens and insures a uniform engagement of the brushes with all parts of the screen during their reciprocation beneath the same. The brushes which engage the under sides of the oppositely inclined screens of each set of screens in the machine are supported in position beneath the screens by a common reciprocating shaft F and for this purpose any suitable connections between the connecting rods E for the brushes and the shaft F may be provided. In the construction shown, yokes G are employed, each having a central journal portion 9 through which the reciprocating shaft F extends, and end journal portions g g for the connecting rods E. The yolres are prevented from ciprocating support and-for pivotally con necting together the brushes for each screen.

The number-and arrangement of the brushes beneath the screens'may be readily varled 1n 1 accordance with the size and nature of the screensto becleaned. The brushes for the oppositescreens are free to turn relative to 1 each other andto their support, and thus tendtoba-lanee each ot-her so asto relieve the supporting shaft from strain due to changes-in the positionof the screens and the brushes, and to equalize the pressure of the brushes against the screens and permit the brushes for each set of inclined screens to be readily adjusted towardand from the screens.

The reciprocating shaft F is a-dj ustably supported at its opposite ends from the frame of the machine so that it can be-raised and lowered relative tothe screensfor regulating the engagement of its brushes with the screens. For this purpose any suitable construction maybe employed. That shown consists o'f bearing plates H H each provided with an offset bearing portion h in which the shaft F is slidably'journaled and which projects through anopening 72. in the frame, this opening being of suflicient size to permit the shaft and its bearing to be raised and lowered on the: frame. The hearing plates are secured to the frame by-bolts 77? which extend through vertical slots it in theplates for permitting a vertical adjustment of the plates on the frame, and each plate is provided with a lug or car h which is connected by anadjust-ing screw 72, with a bracket h rigidly secured to the frame. By manipulating the adjusting screws for the bearing plates at opposite ends of the shaft, the shaft may be raised or lowered as desired. The shaft F is suitably keyed in the rear bearing plate H so as to prevent rotation of the shaft in its bearings. I

Any suitable means may be employed for producing a reciprocating movement of the brush supporting shaft n its hearings on theframe of the separator. In the construction shown, a toothed raclrT is movably mounted in suitable vertical guides i secured a of the brush supporting shaft F. described .18..

end. of a shaft which is journaled in a bearing 70" on the bearing plate H and is provided with a pinion Liwhich is adapted to engage teeth Z formed on the outer end For reciprocating the rack I, a pitman M is provided which is suitably pivoted at one end to aclamp on which is secured to the rack T intermediate of its ends, and the opposite end of thls nitman'is connected to a crank l 1 shaft m which in turn s connected by suitable gears m ands-c tothe auxiliary shaft N with which separatorsof this character are commonly provided for shaking the lower or scalping screen of the separator. The auxiliary shaft N is driven from the intermediate shaft 0, which in turn isdriven from the drive shaft P of the machine, suitable pulleyand belt connections being providedfor this'purpc-se. 7 By means of the gear connections between the cra-nk shaft m" and-the auxiliary shaft N the movement of the rack relative tothe auxiliary shaft may be reducedas desired, and by regulating the relative size of the drive pinions K -and L, the speed and travel of the brush carrying shaft-relative to that of the rack may be likewise still further reduced, as ,may be desired.

In the construction shown, the brushes for each screen are so arranged relative to each other and to the length of the screens, and the relative size of the pinions ii and L is such, that in each reciprocating movement of the shaft F-thebrushes will wipe the entire under surface ofthe screen.

The provisionof-a single verticalrack, which is common to the drive pinionsffor each reciprocating shaft, 1 greatly simplifies the construction and enables the emplo'y ment of a single operative means for rec-1p-- rocating the cleaning brushes of the different sets of screens, and the device isadaptable for separatorshaving a greater or less nu-m- 7 rater withoutrequiring any material change or alteration to be made inthe general construction .;and arrangement of the screens and shaking shoes of the separator.

The drive pinions Lffor the reciprocating shaftsmaybearranged above or below the reciprocating shafts as desired. In the construction. shown, in which two sets of screens are employed, the shaft forthe cleaner for the. upper set of screens is arranged below thedi-ive pinion and hasits teeth for'e'n gagement with the drivepinion arranged-on its upper side, while the shaft for the cleaner for the lower set of screens isarranged above its drive pinion and hasits engaging teeth on its under side; This arrangement is merely for-convenience in securing the shaft in position beneath the screens and may be altered as desired. The opposite ends of the shaft are each preferably provided with a helical groove or thread It which extends through the bearings for the shaft. Any dirt which accumulates on the shaft or in its bearings is forced into the groove as the shaft reciprocates, and the bearings are thus kept clean and the wear thereon greatly re duced. The material which accumulates in this groove may be readily removed from time to time as may be necessary.

The engagement of the brushes with the screens may be regulated by adjusting the bearing plates H H to raise or lower the supporting shaft as may be desired. The operative connections betweenthe rack I and the front end of the shaft being journaled in the front bearing plate H, are adjustable with the plate and shaft longitudinally of the rack so that the pinions K and L will always remain in operative engagement with the rack and shaft respectively, irrespective of any adjustment of the shaft, and thus no separate adjustment of these pinions will be required in making the adjustment of the shaft.

I claim as my invention:

1. In a separator, the combination of a cleaner for the screens, comprising a plurality of brushes arranged in opposite parallel rows, a supporting shaft centrally located between said rows of brushes, means for pivotally securing said brushes to said shaft, and means for reciprocating said shaft, substantially as set forth.

2. In a separator, the combination of a cleaner for the screens comprising a plurality of brushes arranged in opposite parallel rows, means for connecting together the brushes for each row, a supporting shaft ar ranged centrally between the rows, means for pivotally securing said brush connecting means to said shaft, and means for reciprocating said shaft, substantially as set forth.

3. In a separator, the combination of a cleaner for the screens comprising a plurality of brushes arranged in opposite parallel rows, a connection for the brushes of each row to which the brushes of that row are independently pivoted to swing toward and from the screen, a supporting shaft arranged centrally between the rows, means for supporting said brush connec tions from said shaft, and means for reciprocating said shaft, substantially as set forth.

4. In a separator having oppositely inclined screens, the combination of a cleaner for the screens comprising a plurality of brushes for said screens, supporting means arranged centrally between and common to the brushes for the oppositely inclined screens, means for securing said brushes to said supporting means, and means for reciprocating said supporting means, substantially as set forth.

5. In a separator having oppositely inclined screens, the combination of a cleaner for the screens comprising a plurality of brushes for each screen, a supporting shaft arranged centrally between the oppositely inclined screens, means for pivotally securing the brushes for the opposite screens to said shaft to swing toward and from the screens, and means for reciprocating said shaft, substantially as set forth.

6. In a separator having oppositely inclined screens, the combination of a cleaner for the screens comprising a plurality of brushes for each screen, connections common to the brushes for each screen, a supporting shaft arranged centrally between the oppositely inclined screens, means for pivotally securing said connections to said supporting shaft, and means for reciprocating said shaft, substantially as set forth.

7. In a separator having oppositely inclined screens, the combination of a cleaner for the screens comprising a plurality of brushes for each screen, connecting rods to which the brushes for each screen are pivoted, a supporting shaft arranged centrally between said oppositely inclined screens, yokes centrally mounted on said shaft with their opposite ends in engagement with said connecting rods, and means for reciprocating said shaft, substantially as set forth.

8. In a separator having oppositely inclined screens, the combination of a cleaner for the screens comprising a plurality of brushes for each screen, a support arranged centrally between the opposite inclined screens to which the brushes for each screen are pivotally secured and which is adjustable to move said brush-es toward and from said screens, and means for reciprocating said support, substantially as set forth 9. In a separator having oppositely inclined screens, the combination of a cleaner for the screens comprising a plurality of brushes for each screen, a supporting shaft arranged centrally between the opposite inclined screens to which the brushes for the screens are pivotally secured, bearings for said shaft which are adjustable on the separator frame to raise and lower said shaft, and means for reciprocating said shaft in its bearings, substantially as set forth.

10. In a separator having oppositely inclined screens, the combination of a clean-er for the screens comprising a plurality of brushes for each screen, a supporting shaft arranged centrally between the opposite inclined screens to which the brushes for the screens are pivotally secured, bearings for said shaft which are adjustable on the separater frame to raise and lower isaid shaft, a rack movably mountedcnathe separator frarneadjacent ,to one .end Q'fsaid shaft, operative connections between saidrack and said shaft which itI'BIjOuIl'lLlGCl on and adjustable with one of said shaft bearings, andmeans for-reciprocating said-rack, sub stantially as set forth.

11. In separator havingveppositely in chned scre-ens,: the combination a of acleaner for the screens comprising .a .plu'ralityof brushes for eachscreen, a horizontal supporting shaft arranged centrally between the opposite inclined screens to Which-the brushes for the screens are pivotally .secured, a vertical rack arranged on 'thelseparater frame adjacent to one end 7 of :SillTd shaft, operative connections :between v.said rack and said shaft, and .means for .re-

ciprocating said rack, substantially :as set forth.

clined screens, the combination ofaeleaner for the screens comprising a ,plurality of brushes for each, screen, a. supporting shaft arranged centrally between the-opposite 1nclined screens to which-thesbrushesifor the screens are 'pivotally secured, bearin s on theseparator frame in which vsaid shaft is movable endwise, those portions of said shaft-which engage said Ebearingsbeing provided With helical grooves, and means for reciprocating said shaft in said zbeari-ngs, substantially asset forth. 7

12.111 a separator ha ing oppositely i-n- 113. :In a=separator havingula plurality of ets of oppositely inclined screens arranged one above the other, the .cornbinationof .a cleaner for each set ofscreens comprising a .pluralityvofbrushes for each screen and a supporting shaft: to .which thebrushes for eachscreen are'pivotally secured, the supporting shafts for the different sets of sereenszbeing arranged-one above the other,

and m ans 'for reciprocating said shafts porting shafts for the different .sets of screens" being arranged one'abovethe other, and means for reciprocating said shafts arranged at oneenid. of :saidshaft-s and operatively connected with each shaft, substan tially asset forth.

fitness my'hand this 19thday .of December, 1911.

r THEODORE vF. IVIORS'E.

iWitnesses'z Copies of this patent may be obtained for fire cents each, by addressing the {Commissioner of Patents,

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